The admission letter of 2.7 kilograms is known at a glance, but you know how to calculate the density of the gas in the vortex flowmeter, do you know how to convert it?

  Recently, admission notices have been sent out and mailed one after another, and I believe many students have already received them. Many of them still have excited hearts and trembling hands, open the admission letter. The freshman of Southern University of Science and Technology received an admission letter of 2.7kg, which caused heated discussions. Last year, he also received an admission letter of 3.85kg. The content is very surprising, and the netizens are full of sour taste.

  For the admission letter of 2.7 kg, you can tell by a glance that the weight is different, and you can know it by weighing it. But for the gas measurement of the vortex flowmeter, do you know how to calculate the gas density? In the content of this article, let me talk to you about it. The density of the gas measured by the vortex flowmeter should be calculated in this way.

  The calculation of gas density is also divided into two cases: one is the density of dry gas; the other is the density of wet gas.

  Wet gas refers to a gas in which some gases are mixed with water vapor, and the content of water vapor refers to the concept of humidity.

  In this question, only the density calculation method of dry gas is introduced.

  For the actual gas density at high pressure and low temperature, it cannot be calculated simply by the ideal gas law, but must be corrected by adding a gas compressibility coefficient. The density calculation formula is ρ=ρn

  In the formula, ρ—the density of dry gas under working condition, kg/m3

  ρn—In standard state (293.15K, 10132kPa), the density of dry gas, kg/m3

  p—the pressure of the gas in the working state, kPa ρn—the pressure of the gas in the standard state, 10132kPa

  T—the thermodynamic temperature of the gas in the working state, K Tn—the thermodynamic temperature of the gas in the standard state, K

  Z—compression coefficient of gas in working state Z n—compression of gas in standard state

  With the above in mind, what do you all think? The calculation conversion method has been sorted out by the editor. If you have any ideas or opinions, please feel free to call and consult with the editor, and see more flowmeter knowledge at Weihai Kunke Flow Meter Co., Ltd. Pay attention to the editor, the content of the next issue will be more exciting.